Account to authenticate to a cluster now additionally requests a token with the  "userinfo.email" scope. This way, users can write ClusterRoleBindings/RoleBindings with the email address of the service account directly. (This is a breaking change if the numeric uniqueIDs of the Google service accounts were being used in RBAC role bindings. The behavior can be overridden by explicitly specifying the scope values as comma-separated string in the "users[*].config.scopes" field in the KUBECONFIG file.)...

* Adds a metric apiserver_request_error_total to kube-apiserver. This metric tallies the number of request_errors encountered by verb, group, version, resource, subresource, scope, component, and code.  ([#83427](https://github.com/kubernetes/kubernetes/pull/83427), [@logicalhan](https://github.com/logicalhan))

pkg go/ast, type ReturnStmt struct
pkg go/ast, type ReturnStmt struct, Results []Expr
pkg go/ast, type ReturnStmt struct, Return token.Pos
pkg go/ast, type Scope struct
pkg go/ast, type Scope struct, Objects map[string]*Object
pkg go/ast, type Scope struct, Outer *Scope
pkg go/ast, type SelectStmt struct
pkg go/ast, type SelectStmt struct, Body *BlockStmt
pkg go/ast, type SelectStmt struct, Select token.Pos

  the garbage collector starts to manage it.


#### Monitoring/Prometheus
* [action required] The WATCHLIST calls are now reported as WATCH verbs in prometheus for the apiserver_request_* series.  A new "scope" label is added to all apiserver_request_* values that is either 'cluster', 'resource', or 'namespace' depending on which level the query is performed at.([#52237](https://github.com/kubernetes/kubernetes/pull/52237))

- Adds a metric `apiserver_request_error_total` to kube-apiserver. This metric tallies the number of `request_errors` encountered by verb, group, version, resource, subresource, scope, component, and code. ([#83427](https://github.com/kubernetes/kubernetes/pull/83427), [@logicalhan](https://github.com/logicalhan))

t","inDisabledFieldset","addCombinator","disabled","dir","next","childNodes","e","els","find","seed","m","nid","match","groups","newSelector","newContext","exec","getElementById","id","getElementsByTagName","getElementsByClassName","testContext","scope","tokenize","toSelector","join","querySelectorAll","qsaError","removeAttribute","select","keys","cache","key","cacheLength","shift","markFunction","assert","el","createInputPseudo","createButtonPseudo","createDisabledPseudo","isDisabled","createPo...

### API Change

- 1. PodAffinityTerm includes a namespaceSelector field to allow selecting eligible namespaces based on their labels. 

### Not Very Notable (that is, non-user-facing)

- Unit tests have been added for scopes and scope selectors in the quota spec ([#66351](https://github.com/kubernetes/kubernetes/pull/66351), [@vikaschoudhary16](https://github.com/vikaschoudhary16)) Courtesy of SIG Node, and SIG Scheduling

* Add 'kubectl set resources' ([#27206](https://github.com/kubernetes/kubernetes/pull/27206), [@JacobTanenbaum](https://github.com/JacobTanenbaum))
* Support trust id as a scope in the OpenStack authentication logic ([#32111](https://github.com/kubernetes/kubernetes/pull/32111), [@MatMaul](https://github.com/MatMaul))

The licenses granted in Section 2.1 with respect to any Contribution
become effective for each Contribution on the date the Contributor first
distributes such Contribution.

2.3. Limitations on Grant Scope

The licenses granted in this Section 2 are the only rights granted under
this License. No additional rights or licenses will be implied from the
distribution or licensing of Covered Software under this License.